<!DOCTYPE html>
<html lang="en" xmlns:th="http://www.thymeleaf.org">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>登录页面</h1>
<form action="/login.do" method="post">
    <input type="text" name="username"> <br>
    <input type="password" name="password"> <br>
    <input type="submit" value="登录"> <br>
</form>
<span style="color: red" th:text="${msg}"></span>
</body>
</html>
